Improvement in needle-threader for sewing-machines



v H. w. DOPP. NeedIe Threader for Sewing Machines. N0. 88,99. Patented April 6, 1869.

Wihie 5 5 e 5 I I-mreuton Hi WILLIAM DOPP, OF BUF'FA'LO, NEW YORKQ Letters Patent No. 88,699, dated Ami 6, i869.

LMPRZOVEHCENT IN NEEDLE-THREADERPOR SEWING-MACHINES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may, concern.-

Be it known that I, H. WILLIAM DOPP, of the city. of Buffalo, county of Erie, in the State: of New York, have invented a new Device for Facilitating the Threading of Sewing-Machines,- as well as Hand-Sewing Needles; and I do hereby declare ;that the following is a full and exact description thereof, reference being had to the accompanying dlawingaand to .the letters of reference marked thereon.

Figure 1 is a perspective view of the needle-threading apparatus.

Figure 2 is a cross-section of fig. 1.

A is a small metallic block, secured to O by means of a small pin or rivet, F, on which said blockihas its fulcrum.

It is provided with a half round conical notch, B, the purpose of which will be hereafter described.

A is also a small metallic block, secured to (I right beneath A.. H

It is provided with a conical hole, B, and a half 4 round notch, 13, corresponding with the notch A, so that, in conjunction with that of A, it will form a funnelshaped hole. 7

When the blocks are placed together, the conical openings B B guide the thread to and through the eye of the needle.

G is a steel plate, to which are secured A and A; also, the needle-holder D.

Said plate is provided with a small slot, the same running from the end into the thread-passage B, hav:

ing for its object to let out the thread that runs to the bobbin when the needle is threaded.

D is the needle-holder. It is provided with two grooves; one corresponding with B, the other with B.

These grooves run at right angles with blocks A and A. They are for the purpose of determining the position of the needle.

O and D are flexible.

E, is a flexible strip of nietal, secured, with one end, to D, and is provided on the other end with two feelers, or pointed projections, right opposite to and.

corresponding'with B and B These feelers have for their purpose to determine the position of the eye of the needle before the same is to'be threaded.

In order. to operate this needle-threading apparatus, the needle has to he slid into one ,of the grooves of needle-holder D, (in between 0 and D.) E. is then slightly pressed against 1), and the needle drawn partially through the groove until the feeler e will find the eye of the needle. Then let loose E, and pass the thread through B or B.

B is for threading sewing-machine needles, and B for hand-sewing needles.

0 laim.

Iclaim the combination, with the blocks A A, or

equivalent, having a conical opening, 13, of the grooved holding-plate D and pointed plate E c, substantially as Witnesses:

FRANCIS JUST, J om: H. MILLER. 

